TGbb MAC supporting mandatory PHY mode Date 202009 Authors September 2020 Chong Han pureLiFi Slide 1 Abstract The presentation provides the review of minimum requirements of the mandatory MAC for ID: 1045665
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1. Minimum requirements for TGbb MAC supporting mandatory PHY modeDate: 2020-09Authors:September 2020Chong Han (pureLiFi)Slide 1
2. AbstractThe presentation provides the review of minimum requirements of the mandatory MAC for TGbb. The clauses/subclauses referred in the slides come from IEEE802.11v2016. September 2020Chong Han (pureLiFi)Slide 2
3. Channel accessDistributed Coordination Function (DCF) (10.3) carrier sense multiple access with collision avoidance (CSMA/CA)RTS/CTSHybrid Coordination Function (HCF) (10.22)The HCF combines functions from the DCF with some enhanced, QoS-specific mechanisms and frame subtypes to allow a uniform set of frame exchange sequences to be used for QoS data transfers. Enhanced Distributed Channel Access (EDCA) mechanism for contention-based transfer (10.22.2). Suggested to be included in order to enhance transmission capability in terms of QoS. HCF Controlled Channel Access (HCCA) mechanism for contention-free transferSeptember 2020Chong Han (pureLiFi)Slide 3
4. Fragmentation and DefragmentationFragmentation (10.5)The MAC may fragment and reassemble directed MSDUs or MMPDUs. Defragmentation (10.6)Each fragment contains information to allow the complete MSDU or MMPDU to be reassembled from its constituent fragments.The fragmentation and defragmentation mechanisms allow for fragment retransmission.September 2020Chong Han (pureLiFi)Slide 4
5. Multirate support (10.7)Some PHYs have multiple data transfer rate capabilities that allow implementations to perform dynamic rate switching with the objective of improving performance.September 2020Chong Han (pureLiFi)Slide 5
6. Architectural services (1)September 2020Chong Han (pureLiFi)Slide 6a) Authenticationb) Associationc) Deauthenticationd) Disassociatione) Distributionf) Integrationg) Privacyh) Reassociationi) MSDU deliveryj) Higher layer timer synchronization (QoS facility only)k) QoS traffic scheduling (QoS facility only)
7. Architectural services (2)SS (The service provided by STAs) (4.4.2)a) Authenticationb) Deauthenticationc) Privacyd) MSDU deliverye) Higher layer timer synchronization (QoS facility only)f) QoS traffic scheduling (QoS facility only)DSS (The service provided by the DS) (4.4.4)a) Associationb) Disassociationc) Distributiond) Integratione) Reassociationf) QoS traffic scheduling (QoS facility only)PBSS control point service (PCPS) (4.4.3) is not required. September 2020Chong Han (pureLiFi)Slide 7
8. Authentication and privacyAuthentication service: Open System (12.3.3.2)Shared Key (12.3.3.3)Encryption protocols:Required: Open connectionCounter mode (CTR) with Cipher-Block Chaining Message Authentication Code (CBC-MAC) protocol (CCMP) (12.5.3)Optional: Temporal key integrity protocol (TKIP) (12.5.2)Galois/Counter Mode Protocol (GCMP) (12.5.5)September 2020Chong Han (pureLiFi)Slide 8
9. Power managementRequired: Power management with Automatic Power Save Delivery (APSD) (11.2.3.5)Tunneled Direct-link Setup (TDLS) peer power save mode (11.2.3.14) Tunneled Direct-link Setup (TDLS) peer U-APSD (TPU) (11.2.3.15)Optional: PSMP power management (11.2.3.13)FMS power management (11.2.3.16)TIM broadcast (11.2.3.17)WNM sleep mode (11.2.3.18)VHT TXOP power save (11.2.3.19)Power management in an MBSS (11.2.5)SM power save (11.2.6)Power management in a PBSS and DMG infrastructure BSS (11.2.7)Modifications: Use 11.2.2.4 (ATIM and frame transmission) in IEEE802.11v2005 to replace 11.2.8 (ATIM frame and frame transmission in IBSS, DMG infrastructure BSS, and PBSS)September 2020Chong Han (pureLiFi)Slide 9
10. ConclusionSeptember 2020Chong Han (pureLiFi)Slide 10The document provides a guidance for the minimum requirements running mandatory PHY. QoS is enhanced by making EDCA, and APSD power management mode mandatory. Power management mode for Tunneled Direct-Link Setup is provided. Security is enhanced by adopting secure encryption protocol CCMP, while with TKIP and GCMP as optional encryption protocols.